How to recover lost iPhone Calendar?

“How do I recover deleted calendars on iPhone? I had one of my kids delete the calender linked to all our iPhones. How can I recover all the calender enties?” – Asked by Adamst

“I recently updated my phone and lost a lot of information like my calendar. Is there any way to recover this? I backed it up on a Mac, but it didn't show. Anything would help. Thanks!” – Asked by Megnaz

How to recover calendar directly from iPhone or old backup
Before to recover deleted Calendar, you need an iPhone calendar recovery software. Here is my recommendation: iPhone Data Recovery or iPhone Data Recovery for Mac - Dr.Fone for iOS, which supplies you with two methods to find your previous iPhone calendar:
1. Directly recover Calendar from iPhone;
2. Recover Calendar from iTunes backup.

Actually, regardless of iPhone calendar, also contacts, messages, notes, call history, photos & video, even much more can be recovered.

Download the free trial version below to have a try. Get the correct one for your iOS devices.

Step 1. Choose the recovery mode
Right here, we take the Dr.Fone for IOS as an example.
Lauching Dr.Fone for IOS and connecting your iPhone to the computer, you will get the user interface below. You will find three recovery modes for your choice. To directly scan and recover calendar from iPhone, choose "Recover from iOS Device"; to recover data by extracting iTunes backup, switch to "Recover from iTunes Backup File".

The program's window shows as follows.

Step 2. Click on the Start Scan button to begin scanning your iPhone after it's detected by the program.

Step 3. Preview & recover deleted iPhone calendar
After the scan, all data loss shall be found and shown in clear categories. To preview lost calendar, click "Calendar" menu on the right side and you may preview the detailed content one by one. And then mark those you want and click on "Recover" button, you can save them all on your pc with one click.

Note: Data found in each category includes those deleted recently. You should check them by sliding the button at bottom, "Only display the deleted items" in the red area.